<script lang="ts" setup>
import { onUnmounted, ref } from 'vue'
import { codeRules, mobileRules, passwordRules } from '@/utils/rules'
import { showFailToast, showSuccessToast } from 'vant'
import { getLoginByCode, loginByCode, loginByPassword } from '@/services/user'
import { useUserStore } from '@/stores'
import { useRoute, useRouter } from 'vue-router'

const mobile = ref('') // 手机绑定
const password = ref('') // 密码绑定
const code = ref('') // 验证码绑定
const isAgree = ref(false) // 是否勾选协议
const isPass = ref(true) // 判断密码登录还是短信登录
const store = useUserStore()
const router = useRouter()
const route = useRoute()

// 点击登录
const onSubmit = async () => {
  // 1. 判断是否勾选协议，未勾选阻止并提示
  if (!isAgree.value) return showFailToast('请勾选协议')
  // 2. 调用登录API函数
  const { data } = isPass.value
    ? await loginByPassword(mobile.value, password.value)
    : await loginByCode(mobile.value, code.value)
  // 3. 成功存储用户信息并提示
  store.setUser(data)
  showSuccessToast('登陆成功')
  // 4.判断是否有回跳地址，有根据地址回跳，无跳转 /user
  await router.replace((route.query.returnUrl as string) || '/user')
}

// 获取验证码
const time = ref(0)
const from = ref()
let timer: number
const sendCode = async () => {
  // 1. 发送前校验---定时器与手机号
  if (time.value < 0) return
  await from.value?.validate('mobile')
  await getLoginByCode(mobile.value, 'login')
  showSuccessToast('验证码发送成功')
  // 开启倒计时
  time.value = 60
  timer = setInterval(() => {
    time.value--
    if (time.value <= 0) clearInterval(timer)
  }, 1000)
}
onUnmounted(() => {
  clearInterval(timer)
})

// 密码可见与不可见
const isShow = ref(false)
</script>

<template>
  <div class="login-page">
    <cp-nav-bar
      right-text="注册"
      @click-right="$router.push('/register')"
    ></cp-nav-bar>
    <!-- 头部 -->
    <div class="login-head">
      <h3>{{ isPass ? '密码登录' : '短信验证码登录' }}</h3>
      <a href="javascript:;">
        <span @click="isPass = !isPass">{{
          isPass ? '短信验证码登录' : '密码登录'
        }}</span>
        <van-icon name="arrow"></van-icon>
      </a>
    </div>
    <!-- 表单 -->
    <van-form ref="from" autocomplete="off" @submit="onSubmit">
      <van-field
        v-model="mobile"
        :rules="mobileRules"
        maxlength="11"
        name="mobile"
        placeholder="请输入手机号"
        type="tel"
      ></van-field>
      <van-field
        v-if="isPass"
        v-model="password"
        :rules="passwordRules"
        :type="isShow ? 'text' : 'password'"
        placeholder="请输入密码"
      >
        <template #button>
          <cp-icon
            :name="`login-eye-${isShow ? 'on' : 'off'}`"
            style="margin-right: 10px"
            @click="isShow = !isShow"
          ></cp-icon>
        </template>
      </van-field>
      <!--验证码输入框-->
      <van-field
        v-else
        v-model="code"
        :rules="codeRules"
        placeholder="请输入验证码"
        type="password"
      >
        <template #button>
          <span class="btn-send" @click="sendCode">
            {{ time > 0 ? `${time}s后再次发送` : '发送验证码' }}
          </span>
        </template>
      </van-field>
      <div class="cp-cell">
        <van-checkbox v-model="isAgree">
          <span>我已同意</span>
          <a href="javascript:;">用户协议</a>
          <span>及</span>
          <a href="javascript:;">隐私条款</a>
        </van-checkbox>
      </div>
      <div class="cp-cell">
        <van-button block native-type="submit" round type="primary"
          >登 录</van-button
        >
      </div>
      <div class="cp-cell">
        <a href="javascript:;">忘记密码？</a>
      </div>
    </van-form>

    <!-- 底部 -->
    <div class="login-other">
      <van-divider>第三方登录</van-divider>
      <div class="icon">
        <img alt="" src="@/assets/qq.svg" />
      </div>
    </div>
  </div>
</template>

<style lang="scss" scoped>
.login {
  &-page {
    padding-top: 46px;
  }

  &-head {
    display: flex;
    padding: 30px 30px 50px;
    justify-content: space-between;
    align-items: flex-end;
    line-height: 1;

    h3 {
      font-weight: normal;
      font-size: 24px;
    }

    a {
      font-size: 15px;
    }
  }

  &-other {
    margin-top: 60px;
    padding: 0 30px;

    .icon {
      display: flex;
      justify-content: center;

      img {
        width: 36px;
        height: 36px;
        padding: 4px;
      }
    }
  }
}

.van-form {
  padding: 0 14px;

  .cp-cell {
    height: 52px;
    line-height: 24px;
    padding: 14px 16px;
    box-sizing: border-box;
    display: flex;
    align-items: center;

    .van-checkbox {
      a {
        color: var(--cp-primary);
        padding: 0 5px;
      }
    }
  }

  .btn-send {
    color: var(--cp-primary);

    &.active {
      color: rgba(22, 194, 163, 0.5);
    }
  }
}
</style>
